Description

Chlorine Terminated Nonafluorohexylmethylsiloxane – Dimethylsiloxane Copolymer, 5-15 Cst is a specialized fluorosilicone copolymer engineered to provide a unique combination of low surface energy, chemical resistance, and silicone-based flexibility. This product matters for formulators seeking to enhance the performance of coatings, sealants, and release agents with superior oil, solvent, and water repellency. It is primarily needed by manufacturers in the automotive, aerospace, and high-performance industrial coating sectors where durable, low-adhesion surfaces are critical.

Application

• As a key additive in high-performance release coatings for molds and industrial processes.
• Formulation of water and oil repellent surface treatments for textiles, leather, and optical components.
• Modifier for silicone-based sealants and adhesives to improve chemical and fuel resistance.
• Ingredient in specialty lubricants and greases for extreme temperature and chemical environments.
• Intermediate for the synthesis of further functionalized fluorosilicone polymers.
• Additive for anti-fouling and anti-graffiti coatings.
• Used in the production of low surface energy coatings for medical devices and electronics.

Basic Information

Product Name	Chlorine Terminated Nonafluorohexylmethylsiloxane – Dimethylsiloxane Copolymer, 5-15 Cst
CAS No.	908858-79-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly[oxy(methyl-3,3,4,4,5,5,6,6,6-nonafluorohexyl)silylene-co-oxy(dimethyl)silylene], chloro terminated; Fluorosilicone copolymer, chlorine terminated; Nonafluorohexylmethylsiloxane-dimethylsiloxane copolymer, chloro terminated; Fluorinated silicone oil; Low surface energy fluorosilicone fluid; Fluoralkylmethylsiloxane-dimethylsiloxane copolymer
EINECS	Contact for details

Quality Control

Our Chlorine Terminated Nonafluorohexylmethylsiloxane – Dimethylsiloxane Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in viscosity, fluorine content, and functional group integrity. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Ensure containers are kept sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Kinematic Viscosity (25°C)	5 - 15 cSt
Specific Gravity (25°C)	Contact for details
Refractive Index (n20D)	Contact for details
Fluorine Content	Contact for details
Chlorine Content (as terminal Cl)	Contact for details
Water Content	< 0.1% (by Karl Fischer titration)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.